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Permanent Magnets with Improved Mechanical Properties for Propulsion

Award Information

Agency:
Department of Defense
Branch:
Navy
Award ID:
53734
Program Year/Program:
2003 / STTR
Agency Tracking Number:
N013-0116
Solicitation Year:
N/A
Solicitation Topic Code:
N/A
Solicitation Number:
N/A
Small Business Information
IAP RESEARCH, INC.
2763 Culver Avenue Dayton, OH -
View profile »
Woman-Owned: No
Minority-Owned: No
HUBZone-Owned: No
 
Phase 2
Fiscal Year: 2003
Title: Permanent Magnets with Improved Mechanical Properties for Propulsion
Agency / Branch: DOD / NAVY
Contract: N00014-03-C-0207
Award Amount: $549,967.00
 

Abstract:

Rare earth permanent magnets of the Nd2Fe14B family are brittle with poor mechanical properties. The poor material toughness poses serious problems in the manufacture of magnets, assembly in devices and integrity of motor components during spinning. Thetraditional powder metallurgy method of improving mechanical properties by refining microstructures via substitutions of rare earth Dy, Pr for Nd and alternate transition metals for iron yield only incremental improvement that is not sufficient. Wepropose to obtain quantum leap in magnetic and mechanical property improvement in this project by combining four innovative approaches which are (1) exchange spring magnet powders via spark erosion for advantageous particle morphology and magneticperformance, (2) powder particle coatings for corrosion proof and mechanical strength, (3) DMC compaction for full density, and (4) higher strength and net shape rotor fabrication via DMC to enhance magnetic performance with good mechanical robustness.This integrated approach will produce material with the best mechanical strength and toughness while yielding best magnetic performance. The proposed approach of making rotors with high performance powders will revolutionize motor designs by cutting thesize, weight and cost. The applications are related to brush and brushless DC electric motors for the Navy, DOD, and commercial industry. DC electric motors have wide application throughout the Navy, from motors and actuators to instrumentation, pumps,and propulsion. Permanent magnet materials are required for many other Navy and DOD applications including motors and generators for ships, torpedo applications, aircraft and spacecraft systems; actuators, inductors, inverters and regulators for flightcontrol surfaces, sensors and other Navy and aircraft components.

Principal Investigator:

Bhanumathi Chelluri
Principal Research Engineer
9372961806
bhanu@iap.com

Business Contact:

John P. Barber
President
9372961806
johnb@iap.com
Small Business Information at Submission:

IAP Research, Inc.
2763 Culver Avenue Dayton, OH 45429

EIN/Tax ID: 311007250
DUNS: N/A
Number of Employees:
Woman-Owned: No
Minority-Owned: No
HUBZone-Owned: No
Research Institution Information:
UNIV. OF CALIFORNIA, SAN DIEGO
9500 Gilman Drive
LaJolla, CA 92093
Contact: Pamela J. Alexander
Contact Phone: (858) 534-0240
RI Type: Nonprofit college or university